-
Signature
-
/s/ Richard Eisenstadt, as Attorney-in-Fact
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Issuer symbol
-
ALT
-
Transactions as of
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30 Jan 2023
-
Net transactions value
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$0
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Form type
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4
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Filing time
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01 Feb 2023, 16:30:31 UTC
Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Underlying Class |
Amount |
Exercise Price |
Ownership |
Footnotes |
| transaction |
ALT |
Stock Options (option to buy) |
Award |
$0 |
+105,000 |
|
$0.000000 |
105,000 |
30 Jan 2023 |
Common Stock, par value $0.0001 |
105,000 |
$12.88 |
Direct |
F1 |
| transaction |
ALT |
Restricted Stock Units |
Award |
$0 |
+37,100 |
|
$0.000000 |
37,100 |
30 Jan 2023 |
Common Stock, par value $0.0001 |
37,100 |
|
Direct |
F2, F3 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
Explanation of Responses:
Remarks:
Exhibit 24 - Power of Attorney